package com.dong.dobotochatserver.configuration;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.serializer.SerializerFeature;
import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.data.redis.serializer.SerializationException;

import java.nio.charset.Charset;

public class FastJsonRedisSerializer<T> implements RedisSerializer<T> {

    public static final Charset DEFAULT_CHARSET=Charset.forName("UTF-8");

    private Class<T> objClass;

    public FastJsonRedisSerializer(Class<T> objClass){
        super();
        this.objClass=objClass;
    }
    @Override
    public byte[] serialize(T t) throws SerializationException {
        if (t == null){
            return new byte[0];
        }
        return JSON.toJSONString(t, SerializerFeature.WriteClassName).getBytes(DEFAULT_CHARSET);
    }

    @Override
    public T deserialize(byte[] bytes) throws SerializationException {
        if (bytes == null || bytes.length<=0){
            return null;
        }
        String str=new String(bytes,DEFAULT_CHARSET);
        return (T) JSON.parseObject(str,objClass);
    }
}
